RT Journal Article SR Electronic T1 Primary melanocarcinoma of the esophagus JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 607 OP 610 VO 105 IS 6 A1 Bingham, D. L. A1 Chadsey, L. C. A1 Ramchand, S. A1 Doris, P. J. YR 1971 UL http://www.cmaj.ca/content/105/6/607.abstract